Datasheet

ManualsBrandsST ManualsIntegrated Circuits (ICs)Linear Voltage Regulator, Polar, 1.2 ... 37V, 1.5A, TO-220

March 2010 Doc ID 2154 Rev 15 1/25

LM117

LM217, LM317

1.2 V to 37 V adjustable voltage regulators

Features

■ Output voltage range: 1.2 to 37 V

■ Output current in excess of 1.5 A

■ 0.1% Line and load regulation

■ Floating operation for high voltages

■ Complete series of protections: current limiting,

thermal shutdown and SOA control

Description

The LM117, LM217, LM317 are monolithic

integrated circuits in TO-220, TO-220FP, TO-3

and D²PAK packages intended for use as positive

adjustable voltage regulators.

They are designed to supply more than 1.5 A of

load current with an output voltage adjustable

over a 1.2 to 37 V range.

The nominal output voltage is selected by means

of only a resistive divider, making the device

exceptionally easy to use and eliminating the

stocking of many fixed regulators.

TO-220FP

D²PAK

TO-220

TO-3

Table 1. Device summary

Order codes

TO-220 D²PAK (tape and reel) TO-220FP TO-3

LM117K

LM217T LM217D2T-TR LM217K

LM317T LM317D2T-TR LM317P LM317K

www.st.com

Summary of content (25 pages)

PAGE 1
LM117 LM217, LM317 1.2 V to 37 V adjustable voltage regulators Features ■ Output voltage range: 1.2 to 37 V ■ Output current in excess of 1.5 A ■ 0.1% Line and load regulation ■ Floating operation for high voltages ■ Complete series of protections: current limiting, thermal shutdown and SOA control TO-220 TO-220FP Description The LM117, LM217, LM317 are monolithic integrated circuits in TO-220, TO-220FP, TO-3 and D²PAK packages intended for use as positive adjustable voltage regulators.
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Contents LM117, LM217, LM317 Contents 1 Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5 Typical characteristics .
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LM117, LM217, LM317 1 Pin configuration Figure 1.
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Maximum ratings LM117, LM217, LM317 2 Maximum ratings Table 2. Absolute maximum ratings Symbol VI - VO IO TOP PD TSTG Parameter Value Input-reference differential voltage Unit 40 V Output current Internally limited Operating junction temperature for: LM117 -55 to 150 LM217 -25 to 150 LM317 0 to 125 Power dissipation °C Internally limited Storage temperature -65 to 150 °C Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
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LM117, LM217, LM317 3 Diagram Figure 2.
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Electrical characteristics 4 LM117, LM217, LM317 Electrical characteristics VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = - 55 to 150 °C for LM117, TJ = - 25 to 150 °C for LM217, unless otherwise specified. Table 4.
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LM117, LM217, LM317 Electrical characteristics VI - VO = 5 V, IO = 500 mA, IMAX = 1.5 A and PMAX = 20 W, TJ = 0 to 125°C, unless otherwise specified. Table 5. Symbol ΔVO ΔVO Electrical characteristics for LM317 Parameter Line regulation Test conditions VI - VO = 3 to 40 V TJ = 25°C VO ≤ 5 V IO = 10 mA to IMAX TJ = 25°C VO ≥5 V, IO = 10 mA to IMAX TJ = 25°C Adjustment pin current ΔIADJ Adjustment pin current VI - VO = 2.
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Typical characteristics LM117, LM217, LM317 5 Typical characteristics Figure 3. Output current vs. input-output differential voltage Figure 5. Reference voltage vs. junction Figure 6. Basic adjustable regulator 8/25 Figure 4. Doc ID 2154 Rev 15 Dropout voltage vs.
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LM117, LM217, LM317 6 Application information Application information The LM117, LM217, LM317 provides an internal reference voltage of 1.25 V between the output and adjustments terminals. This is used to set a constant current flow across an external resistor divider (see Figure 3), giving an output voltage VO of: VO = VREF (1 + R2/R1) + IADJ R2 The device was designed to minimize the term IADJ (100 µA max) and to maintain it very constant with line and load changes.
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Application information Figure 8. Slow turn-on 15 V regulator Figure 9. Current regulator LM117, LM217, LM317 IO = (VREF / R1) + IADJ = 1.25 V / R1 Figure 10.
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LM117, LM217, LM317 Application information Figure 11. Digitally selected outputs (R2 sets maximum VO) Figure 12. Battery charger (12 V) * RS sets output impedance of charger ZO = RS (1 + R2/R1). Use of RS allows low charging rates whit fully charged battery.
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Application information LM117, LM217, LM317 Figure 13. Current limited 6 V charger * R3 sets peak current (0.6 A for 1 0). ** C1 recommended to filter out input transients.
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LM117, LM217, LM317 7 Package mechanical data Package mechanical data In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK® packages, depending on their level of environmental compliance. ECOPACK® specifications, grade definitions and product status are available at: www.st.com. ECOPACK® is an ST trademark. Table 6. TO-220 mechanical data Type STD - ST Dual Gauge Type STD - ST Single Gauge mm. mm. Dim. Min. Typ. Max. Min. Typ. Max. A 4.40 4.
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Package mechanical data LM117, LM217, LM317 Figure 14. Drawing dimension TO-220 (type STD-ST Dual Gauge) 0015988/A Note: 14/25 1 Max resin gate protrusion: 0.5 mm. 2 Resin gate position is accepted in each of the two positions shown on the dwg, or their symmetrical.
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LM117, LM217, LM317 Package mechanical data Figure 15. Drawing dimension TO-220 (type STD-ST Single Gauge) 8174627_B Note: In spite of some difference in tolerances, the packages are compatible.
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Package mechanical data LM117, LM217, LM317 Figure 16. Drawing dimension tube for TO-220 Dual Gauge (mm.) Figure 17. Drawing dimension tube for TO-220 Single Gauge (mm.
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LM117, LM217, LM317 Package mechanical data TO-3 mechanical data mm. Dim. Min. A inch. Typ. Max. Min. Typ. 11.85 B 0.96 Max. 0.466 1.05 1.10 0.037 0.041 0.043 C 1.70 0.066 D 8.7 0.342 E 20.0 0.787 G 10.9 0.429 N 16.9 0.665 P 26.2 R 3.88 1.031 4.09 U 0.152 39.5 V 1.555 30.10 1.185 A P D C O N B V E G U 0.
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Package mechanical data LM117, LM217, LM317 TO-220FP mechanical data Dim. mm. Min. Typ inch. Max. Min. Typ. Max. A 4.40 4.60 0.173 0.181 B 2.5 2.7 0.098 0.106 D 2.5 2.75 0.098 0.108 E 0.45 0.70 0.017 0.027 F 0.75 1 0.030 0.039 F1 1.15 1.50 0.045 0.059 F2 1.15 1.50 0.045 0.059 G 4.95 5.2 0.194 0.204 G1 2.4 2.7 0.094 0.106 H 10.0 10.40 0.393 L2 L3 16 0.409 0.630 28.6 30.6 1.126 1.204 L4 9.8 10.6 0.385 0.417 L5 2.9 3.6 0.114 0.
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LM117, LM217, LM317 Package mechanical data Figure 18.
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Package mechanical data LM117, LM217, LM317 Figure 19. Drawing dimension D²PAK (type WOOSEOK-SUBCON.
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LM117, LM217, LM317 Table 7. D²PAK mechanical data Dim. MIN. Type STD-ST Type WOOSEOK-Subcon. mm. mm. TYP. MAX. MIN. TYP. MAX. A 4.40 4.60 4.30 4.70 A1 0.03 0.23 0 0.20 b 0.70 0.93 0.70 0.90 b2 1.14 1.70 1.17 1.37 c 0.45 0.60 0.45 0.50 0.60 c2 1.23 1.36 1.25 1.30 1.40 D 8.95 9.35 9 9.20 9.40 D1 7.50 E 10 E1 8.50 e 7.50 10.40 9.80 10.20 7.50 2.54 2.54 e1 4.88 5.28 H 15 15.85 15 J1 2.49 2.69 2.20 2.60 L 2.29 2.79 1.79 2.79 L1 1.
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Package mechanical data LM117, LM217, LM317 Figure 20. D²PAK footprint recommended data Table 8. Footprint data Values 22/25 Dim. mm. inch. A 12.20 0.480 B 9.75 0.384 C 16.90 0.665 D 3.50 0.138 E 1.60 0.063 F 2.54 0.100 G 5.08 0.
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LM117, LM217, LM317 Package mechanical data Tape & reel D2PAK-P2PAK-D2PAK/A-P2PAK/A mechanical data mm. inch. Dim. Min. Typ. A Max. Min. Typ. 180 13.0 7.086 C 12.8 D 20.2 0.795 N 60 2.362 T 13.2 Max. 0.504 0.512 14.4 0.519 0.567 Ao 10.50 10.6 10.70 0.413 0.417 0.421 Bo 15.70 15.80 15.90 0.618 0.622 0.626 Ko 4.80 4.90 5.00 0.189 0.193 0.197 Po 3.9 4.0 4.1 0.153 0.157 0.161 P 11.9 12.0 12.1 0.468 0.472 0.
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Revision history LM117, LM217, LM317 8 Revision history Table 9. Document revision history Date Revision 01-Sep-2004 10 Mistake VREF ==> VO, tables 1, 4 and 5. 19-Jan-2007 11 D²PAK mechanical data has been updated, add footprint data and the document has been reformatted. 13-Jun-2007 12 Change values ΔIADJ and VREF test condition of IO = 10 mA to IMAX ==> IO = 10 mA to 500 mA on Table 5. 23-Nov-2007 13 Added Table 1.
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LM117, LM217, LM317 Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.